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	स्व-पर्यवेक्षित सिमेंटिक सेगमेंटेशन (Self-supervised Semantic Segmentation)	इंस्टेंस सेगमेंटेशन
क्षेत्र	गहन अधिगम	गहन अधिगम
परिवार	Machine learning	Machine learning
उद्भव वर्ष	2020–2022	2017
प्रवर्तक	Multiple groups (Caron et al.; Hamilton et al. among key contributors)	He, K., Gkioxari, G., Dollar, P., Girshick, R.
प्रकार	Self-supervised dense prediction	Pixel-level detection and mask prediction
मौलिक स्रोत	Caron, M., Touvron, H., Misra, I., Jegou, H., Mairal, J., Bojanowski, P., & Joulin, A. (2021). Emerging Properties in Self-Supervised Vision Transformers. Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV), 9650–9660.	He, K., Gkioxari, G., Dollar, P., & Girshick, R. (2017). Mask R-CNN. Proceedings of the IEEE International Conference on Computer Vision (ICCV), 2961–2969.
उपनाम	SSL semantic segmentation, unsupervised semantic segmentation, label-free semantic segmentation, self-supervised dense prediction	instance-level segmentation, object instance segmentation, mask prediction, panoptic instance segmentation
संबंधित	5	4
सारांश	Self-supervised semantic segmentation learns to assign a class label to every pixel of an image without relying on manually annotated segmentation masks. A backbone network is first trained on large quantities of unlabeled images using self-supervised objectives such as contrastive learning or masked image modeling, and the resulting dense features are then used to partition and label image regions, achieving competitive segmentation quality at a fraction of the annotation cost.	Instance segmentation is a computer vision task that simultaneously detects every distinct object in an image and produces a precise pixel-level mask for each individual object instance. Unlike semantic segmentation, which labels every pixel with a class, instance segmentation distinguishes between separate objects of the same class, enabling fine-grained spatial understanding.